| 微重力探测城市地下空间试验及正演模拟分析 |
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| 引用本文： | 路瀚,孙岩,周明霞,张冲,殷久洋,马东,崔明飞,姜鸿.微重力探测城市地下空间试验及正演模拟分析[J].CT理论与应用研究,2022,31(5):543-556. |
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| 作者姓名： | 路瀚 孙岩 周明霞 张冲 殷久洋 马东 崔明飞 姜鸿 |
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| 作者单位： | 1.中国地质大学（武汉）地球物理与空间信息学院, 武汉430074 |
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| 基金项目： | 中国地质科学院岩溶地质研究所（微重力剖面测量（岩溶委托[2018]009））；中国地质调查局西安地质调查中心（渭河盆地氦资源调查重磁测量与化探采样（12120113040400））。 |
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| 摘 要： | 随着国家城市快速发展，城市地下空间探测与开发利用需求加大，传统物探方法在人文活动区域受干扰因素较多，无法获取真实准确的探测数据。微重力方法相对而言受干扰因素较小，对于城市建筑物和人类活动遗迹干扰可以通过模型正演校正的方法消除，从而获取高精度重力数据，进而通过有效的反演方法，可以获得城市地下空间的隧道、采空区、空洞、塌陷区、管廊等空间位置信息。本文用地面移动式高精度重力测量仪器，进行城市探测中受影响的因素进行试验性探测与分析，并结合正演模型校正研究，微重力方法在城市地下空间探测上有不错的效果。
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| 关 键 词： | 正演模型 城市空间 微重力 重力探测 |
| 收稿时间： | 2021-12-20 |
Experiment and Forward Modeling Analysis of Microgravity Detection of Urban Underground Space |
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| Abstract: | With the rapid development of national cities, the demand for urban underground space exploration development and utilization has increased. Due to the interference factors in human activities areas, traditional geophysical methods can't obtain true and accurate detection data. The microgravity method is relatively less affected by interference factors. The interference from urban buildings and human activities can be eliminated by the method of model forward correction, so as to obtain high-precision gravity collection data, and then the spatial location information of tunnel, goaf, cavity, collapse area and pipe gallery in urban underground space can be obtained through effective inversion method. In this paper, through experimental detection and analysis of the theoretically affected factors in the urban detection carried out by the ground mobile high-precision gravity measuring instrument, combined with the forward model correction research, the microgravity method shows good effect in the detection of urban underground space. |
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